 <!DOCTYPE html>
 <html lang="en">
 <head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="vue.js"></script>
 </head>
 <body>
    <div id="app">
        <li v-for="(value,key,index) in user">{{key}}:{{value}}</li>
        <li v-for="value in user">{{value}}</li>
    </div>
    <script>
        let vm=new Vue({
            el:"#app",
            data:{
                user:{
                    userId:1,
                    userName:'张三',
                    userSex:'男'
                }
            }
        })
    </script>
 </body>
 </html>